Feeding structure for injection molding machine

Abstract

The utility model discloses a feeding structure for an injection molding machine, and relates to the technical field of injection molding machines, an electric telescopic rod is arranged at the middle position of the upper surface of a sealing cover, the telescopic end of the electric telescopic rod is connected with a magnetic suction cup in a feeding hopper, a sieve plate is further arranged in the feeding hopper, and the sieve plate is connected with the sealing cover. A mounting cylinder is mounted on the lower surface of the sieve plate, a double-head motor is arranged in the mounting cylinder, a first rotating shaft and a second rotating shaft are arranged at the driving end of the double-head motor from top to bottom, connecting rods are symmetrically arranged on the two sides of the first rotating shaft, and rake rods are mounted on the lower surfaces of the connecting rods; and an anti-blocking rod is mounted on the outer side of the second rotating shaft. Through the arrangement of the mounting cylinder, the double-head motor, the first rotating shaft, the connecting rod, the rake rod, the second rotating shaft and the anti-blocking rod, raw materials on the sieve plate can be raked to achieve the purpose of efficient screening, and meanwhile, the anti-blocking rod can achieve anti-blocking treatment on the feeding hopper.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to a feeding structure for injection molding machines. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics. When using an injection molding machine, its feeding structure is one of its important components. The feeding structure is the structure that introduces the plastic raw material into the injection molding machine and processes it.

[0003] Chinese patent discloses a feeding structure for an injection molding machine (authorization announcement number CN220030988U). This patented technology facilitates the extrusion of plastic into the mold through the extrusion tube. The cooperation between the feed inlet and the feed hopper facilitates the feeding of materials into the extrusion tube. The mounting frame facilitates the installation of components. The electromagnet screen facilitates the filtering of impurities in the material, thereby improving the product qualification rate. The connecting frame facilitates the installation of components.

[0004] However, most existing injection molding machines use a screening method where raw materials are sieved on a screen. This method lacks the ability to scrape the material on the screen to improve screening efficiency, resulting in poor screening performance. For example, the aforementioned comparative document uses an electromagnetic screen for screening. In practical applications, when raw materials are simply placed on the screen, they tend to accumulate, affecting the screening process. Furthermore, blockages can easily occur at the connection point before the material enters the injection molding machine, further hindering operation. Therefore, those skilled in the art have provided a feeding structure for injection molding machines to address the problems mentioned in the background section. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a feeding structure for injection molding machines, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding structure for an injection molding machine, comprising: an extrusion tube, a feeding hopper disposed on the upper surface of the extrusion tube, a feeding port disposed on the outside of the feeding hopper, and a connecting port disposed at the lower end of the feeding hopper above the extrusion tube. A sealing cover is installed at the upper end of the feeding hopper, and an electric telescopic rod is disposed at the middle position of the upper surface of the sealing cover. A magnetic suction cup is connected to the telescopic end of the electric telescopic rod inside the feeding hopper. A sieve plate is also disposed inside the feeding hopper, and an installation cylinder is installed on the lower surface of the sieve plate. A dual-head motor is disposed inside the installation cylinder. A first rotating shaft and a second rotating shaft are respectively disposed from top to bottom on the drive end of the dual-head motor. Connecting rods are symmetrically disposed on both sides of the first rotating shaft, and a rake rod is installed on the lower surface of the connecting rod. An anti-blocking rod is installed on the outside of the second rotating shaft.

[0007] As a further technical solution of this utility model, the outer surface of the feed hopper is provided with an external thread, and the inner side of the sealing cover is provided with an internal thread that engages with the external thread.

[0008] As a further technical solution of this utility model, a connecting sleeve is installed at the middle position of the upper surface of the magnetic chuck, and the telescopic end of the electric telescopic rod is embedded in the connecting sleeve and installed by bolts.

[0009] As a further technical solution of this utility model, the connecting rod and the first rotating shaft are arranged in a "T" shape, and the lower end of the rake rod is in contact with the upper surface of the sieve plate.

[0010] As a further technical solution of this utility model, the rake rod is cylindrical on the lower surface of the connecting rod, and the rake rods are staggered on the lower surface of the connecting rod.

[0011] As a further technical solution of this utility model, three sets of anti-blocking rods are provided on the outside of the second rotating shaft, and the anti-blocking rods are arranged perpendicular to the second rotating shaft.

[0012] This utility model provides a feeding structure for an injection molding machine, which has the following advantages compared with the prior art:

[0013] 1. This design provides a feeding structure for an injection molding machine. Through the installation of a mounting cylinder, a dual-head motor, a first rotating shaft, a connecting rod, a rake rod, a second rotating shaft, and an anti-blocking rod, the first and second rotating shafts rotate when the dual-head motor is working. During rotation, the rake rod on the lower surface of the connecting rod rakes the raw material on the screen plate, achieving efficient screening. Simultaneously, the anti-blocking rod prevents blockage of the feed hopper, avoiding interference with the injection molding machine's feeding operation. This design is highly practical.

[0014] 2. The feeding structure for an injection molding machine designed in this way includes a sealing cover, an electric telescopic rod, a magnetic chuck, and a connecting sleeve. When the electric telescopic rod is working, the magnetic chuck will move up and down in the feeding hopper, thereby magnetically attracting the raw material that enters the feeding hopper. At the same time, the sealing cover is threadedly connected to the feeding hopper, which facilitates the cleaning of the magnetic chuck. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a feeding structure for an injection molding machine;

[0016] Figure 2 This is a schematic diagram of the internal structure of the feed inlet in a feeding structure for an injection molding machine;

[0017] Figure 3 This is a schematic diagram of a sieve plate in a feeding structure for an injection molding machine.

[0018] In the diagram: 1. Extrusion pipe; 2. Feed hopper; 21. Connection port; 22. Feed inlet; 3. Sealing cover; 31. Electric telescopic rod; 32. Magnetic chuck; 33. Connecting sleeve; 4. Screen plate; 5. Mounting cylinder; 51. First rotating shaft; 511. Connecting rod; 512. Rake rod; 52. Second rotating shaft; 521. Anti-blocking rod; 53. Dual-head motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides a feeding structure technical solution for an injection molding machine, including: an extrusion tube 1, a feeding hopper 2 disposed on the upper surface of the extrusion tube 1, a feeding port 22 disposed on the outside of the feeding hopper 2, and a connecting port 21 disposed at the lower end of the feeding hopper 2 above the extrusion tube 1. A sealing cover 3 is installed at the upper end of the feeding hopper 2, and an electric telescopic rod 31 is disposed at the middle position of the upper surface of the sealing cover 3. The telescopic end of the electric telescopic rod 31 is connected to a magnetic suction cup 32 inside the feeding hopper 2. A screen plate 4 is also disposed inside the feeding hopper 2, and an installation cylinder 5 is installed on the lower surface of the screen plate 4. A double-head motor 53 is disposed inside the installation cylinder 5. The drive end of 53 is provided with a first rotating shaft 51 and a second rotating shaft 52 from top to bottom. Connecting rods 511 are symmetrically arranged on both sides of the first rotating shaft 51. A rake rod 512 is installed on the lower surface of the connecting rod 511. An anti-blocking rod 521 is installed on the outer side of the second rotating shaft 52. This arrangement uses the magnetic suction cup 32 to magnetically attract the raw material on the screen plate 4. At the same time, the rotation of the first rotating shaft 51 is used to efficiently rake and screen the raw material on the screen plate 4 through the rake rod 512 connected by the connecting rod 511. The anti-blocking rod 521 on the outer side of the second rotating shaft 52 can prevent the feed hopper 2 from blocking, so as to facilitate rapid material discharge and has good practicality.

[0021] like Figure 2 As shown, the outer surface of the feed hopper 2 is provided with an external thread, and the inner side of the sealing cover 3 is provided with an internal thread that engages with the external thread. This arrangement allows the sealing cover 3 to be quickly installed and removed by the engagement of the external and internal threads, which is convenient for subsequent cleaning and replacement of the magnetic chuck 32.

[0022] like Figure 2 As shown, a connecting sleeve 33 is installed at the middle position of the upper surface of the magnetic chuck 32. The telescopic end of the electric telescopic rod 31 is embedded in the connecting sleeve 33 and installed by bolts. This setting uses bolts to connect the connecting sleeve 33 to the telescopic end of the electric telescopic rod 31. When the electric telescopic rod 31 is working, the magnetic chuck 32 will rise and fall inside the feed hopper 2, thereby adjusting the height of the magnetic chuck 32 to better magnetically attract impurities on the screen plate 4.

[0023] like Figure 2 and Figure 3 As shown, the connecting rod 511 and the first rotating shaft 51 are arranged in a "T" shape. The lower end of the rake rod 512 contacts the upper surface of the screen plate 4. The rake rod 512 is cylindrical on the lower surface of the connecting rod 511, and the rake rods 512 are staggered on the lower surface of the connecting rod 511. This arrangement allows the connecting rod 511 to rotate inside the feed hopper 2 by rotating the first rotating shaft 51, and the rake 512 on the lower surface of the connecting rod 511 will rake the raw material on the screen plate 4, effectively improving its screening efficiency.

[0024] like Figure 3As shown, three sets of anti-blocking rods 521 are provided on the outside of the second rotating shaft 52, and the anti-blocking rods 521 are arranged perpendicular to the second rotating shaft 52. This arrangement allows the second rotating shaft 52 to rotate, thereby driving the anti-blocking rods 521 to rotate, which can prevent blockage inside the feed hopper 2 and has good practicality.

[0025] The working principle of this utility model is as follows: When the feeding structure of this utility model for injection molding machine is in use, the raw material for injection molding machine is first fed into the inside of the feeding hopper 2 through the feeding port 22 and falls onto the screen plate 4. At this time, by starting the operation of the electric telescopic rod 31 set on the sealing cover 3, the magnetic suction cup 32 will move downward and close to the screen plate 4. At the same time, by starting the operation of the double-head motor 53 inside the mounting cylinder 5, the first rotating shaft 51 and the second rotating shaft 52 will rotate. When rotating, the connecting rod 511 on the outside of the first rotating shaft 51 rotates, so that the rake rod 512 on its lower surface rakes the raw material on the screen plate 4 to improve its screening efficiency. During the rakeing, the magnetic suction cup 32 will pick up impurities in the raw material. When the second rotating shaft 52 rotates, the anti-blocking rod 521 on its outside will prevent the raw material entering the extrusion tube 1 from the inside of the feeding hopper 2 from being blocked.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A feeding structure for an injection molding machine, characterized in that, include: The feed hopper (2) is located on the upper surface of the feed hopper (1), the feed inlet (22) is located on the outside of the feed hopper (2), and the connecting port (21) is located at the lower end of the feed hopper (2) above the feed hopper (1). A sealing cover (3) is installed at the upper end of the feed hopper (2). An electric telescopic rod (31) is provided at the middle position of the upper surface of the sealing cover (3). The telescopic end of the electric telescopic rod (31) is connected to a magnetic chuck (32) inside the feed hopper (2). The part is also provided with a sieve plate (4), and an installation cylinder (5) is installed on the lower surface of the sieve plate (4). A double-head motor (53) is installed inside the installation cylinder (5). The drive end of the double-head motor (53) is provided with a first rotating shaft (51) and a second rotating shaft (52) from top to bottom. Connecting rods (511) are symmetrically arranged on both sides of the first rotating shaft (51). A rake rod (512) is installed on the lower surface of the connecting rod (511). An anti-blocking rod (521) is installed on the outer side of the second rotating shaft (52).

2. The feeding structure for an injection molding machine according to claim 1, characterized in that, The outer surface of the feed hopper (2) is provided with an external thread, and the inner side of the sealing cover (3) is provided with an internal thread that engages with the external thread.

3. The feeding structure for an injection molding machine according to claim 1, characterized in that, A connecting sleeve (33) is installed at the middle position of the upper surface of the magnetic chuck (32), and the telescopic end of the electric telescopic rod (31) is embedded in the connecting sleeve (33) and installed by bolts.

4. The feeding structure for an injection molding machine according to claim 1, characterized in that, The connecting rod (511) is arranged in a "T" shape with the first rotating shaft (51), and the lower end of the rake rod (512) is in contact with the upper surface of the sieve plate (4).

5. The feeding structure for an injection molding machine according to claim 1, characterized in that, The rake rod (512) is cylindrical on the lower surface of the connecting rod (511), and the rake rods (512) are staggered on the lower surface of the connecting rod (511).

6. The feeding structure for an injection molding machine according to claim 1, characterized in that, Three sets of the anti-blocking rods (521) are provided on the outside of the second rotating shaft (52), and the anti-blocking rods (521) are arranged perpendicular to the second rotating shaft (52).

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